Pearson correlation coefficients for the logged daily outdoor concentrations of NO2, NO, particle numbers, PM2.5 and PM10 in Aberdeen
| Particle numbers | PM2.5 | PM10 | |
|---|---|---|---|
| Each box gives correlation coefficient and number of daily observations. All correlations were significant at p<0.001. | |||
| No of particles <200 nm diameter | 0.56 (n = 124) | 0.40 (n = 121) | |
| Nitric oxide (NO) | 0.86 (n = 115) | 0.45 (n = 121) | 0.39 (n = 117) |
| Nitrogen dioxide (NO2) | 0.89 (n = 115) | 0.55 (n = 121) | 0.45 (n = 117) |